Material handling device



J. S. PILCH MATERIAL HANDLING DEVICE April 17, 1956 5 Sheets-Sheet 1 Filed Dec. 18, 1951 INVENTOR. JOHN 5. Pl LCH 4% ATTORNEY April 17, 1956 J, PlLcH 2,742,165

MATERIAL HANDLING DEVICE Filed Dec. 18, 1951 s Sheets-Sheet 2 25 INVENTOR.

JO H N a. PI u: H

.ATT OP/VE Y.

April 17, 1956 J. s. PlLCH MATERIAL HANDLING DEVICE 3 Sheets-Sheet 3 Filed Dec. 18, 1951 INVENTOR. JOH N s. P; LC H 2 ATTOEN i i1 Emmi United Sta s Patent 2,742,165 MATERIALTHANDLENG nnvrcn s V Johns. Pilcli', WiirQMass. Application-Decernlier'IS;1951 ,-'SeriallNo;.262,231.

Claims. or. 214-138) .This' invention relates to anew and improvedmaterial handling apparatus and has particular reference to new and improved features of such". an apparatus adapted for ernbodimentin a loader, trencher, or similar type apparatus.

being" handled is facilitated.-

Another object of the invention-is to provide a new and improved device of the type set forth in which greater flexibility of the handling of the material is provided-without requiring moving of the vehicleby which the appa- Yratus' is: carried.

A-n'other obj'ectoftheinvention is to provide anew and improved apparatus-of thetyp'e set forth which apiparatus may be tractor mounted and adapted toxbe actuated by the tractor power supply. V

' Another objectof the invention is to provide anewand improved device of the type set forth which is entirely hydraulically actuated. 1

Another object of the invention is to provide a' device of the typeset forth having new and. improved means for effecting removal: ofv the materialv from. the bucket.

' Another object of the invention. is to provide axnew and improved device of the type .set forth wherein the bucket, after beinlg loaded, may be raisedin a vertical and/ or lateral direction as desired and thereby facilitating the loading of material thereby and increasing the speed of operation of the device. p Another object of the invention is to provide a material An object'of the invention is to provide a new:.and L improvedmaterial handling? apparatus of? the typessetforth 'in which the loading or other dumping of thematerial Patented Apr. 17, 1956 Fig. 4 is a fragmentary front view, generally similar to Fig, 2,, but showing a modified form of the invention; Fig. 5 is; a fragmentary sectional view'taken on line 5-5 of Fig. 1,. looking in the direction of the arrows; and

Fig.6 isa' view generally similar to Fig. 5 but showing the modified. fornr of the apparatus of Fig. 4.

Referring more particularly to the drawings wherein similar reference: characters designate corresponding -partsthroughout,;the invention is shown applied to a tractor having. the frame 10, wheels 11, and engine 12.

flnt-he tractor or frame are mounted the inverted -V-shaped'strutsor supports 13, which are provided on opposite sides of the engine 12 and to each of which is pivotally connected the usual loader arm 14 at 15. The

opposite pairsof. struts 13 are connected between connects ing rod 16 to the opposite ends of which are connected the struts 1:3 and the pivotal connection 15 for the arms 14.

On each of the pairs of struts 13 adjacent pivot 15 is provided a support 16 on which is'pivotally mounted at 17 av dipper stick. actuating cylinder 18 in each of which is positioned a piston on the rams 19. t

On the frame 10, on each sideofengine 12 is pivotally connected: at 20a cylinder 21 and to each of whichextends apistononrams 22- each of which are pivotally connected at their-outer ends at 23 to one of the arms 14. These 'cylinders 21 and rams 22' are provided for raising and lowering the arms 14 and the mechanism carried therevOntheforward ends of arms 14 and rams 19. is located the support 24 which is'pivotally connected at 25 and 26 respectively, to said arms 14 and rams .19 and dipper stick .27 is carried by said support 24.

handling device in which the bucket may be moved? in I desired'directionto facilitate and speed up the operation of thedevi'ce'; I Another' object of the invention is to provide'anew and improved device ofthetype setforth which is interchangeable with a tractor mounted loader and which *em- "bodies a considerable "number of parts of the loader apparatus. p

7 Another object of the invention is .to provide anew and 1 improved tractor mounted material: handling device adapted for use as a loader or trencher, which is entirely hydraulically actuated and in which the bucket may be; raised vertically and laterally to thereby facilitate and speed up the operation of the device.

Other objects and advantages of the invention willbe apparent from the following description taken in connection with the accompanying drawings. It will be understood that changes may be made in the details of construction and arrangement of parts withoutdeparting from the scope of the invention as set forth in the accompanying claims. 7

Referring to the drawings:

Fig. l is a side view of an apparatus embodying the invention;

Fig. 2 is a front view thereof; Fig. 3 is atop or plan view thereof;

closure member which is of substantially the size. and shape of the open ends of bucket 29, but yet slightly smaller, so :as to allow the moving of said member 30 through: said bucket 29,that said. closure may'be' utilized to close. either end of bucket 29 dependingupon. whether the Dipper stick 27 comprises a pair of spaced parallel support's 28 between. the free ends of which is secured the pivotally mounted on support or plate 24 by. the large .stud 4-1.

Ehexbracket or strut 42- is provided between arm .31 and extension for reinforcing the construction. and providing the same with greater rigidity. f

"Alt-will: beseen: that with the movable .or adjustable apparatus is toibeemployed for trenching or loading "tandzalsocthe member .30 may be used for iemptying or dislodging material from the bucket 29 as hereinafter described. a i

In order to eifect lateral movement of dipper stick 27 and bucket 29, plate or support 24 is provided with the supporting structure 43 which may be at one side of support 24 as shown in Figs. 2, 3 and 5, or may be posi tioned on the upper side thereof, as shown in Fig. 4 and to this reinforcing structure 43 is pivotally connected at 44 the end of cylinder 45 in which is a piston or ram 46 which is pivotally connected to pin 47 which extends through slot 48 and which pin is connected to plate and adapted to effect pivotal movement thereof, within the range limited the slot 48 and'length of cylinder and ram and 46.

The hydraulic system is adapted to be actuated by the 3 usual hydraulic pump (not shown) carried by the tractor and the hydraulic fluid is supplied by tank 49. From said hydraulic pump, fluid is supplied under pressure to control valve 50'which is adapted to be controlled by the operator, through the operating levers 51, each .of

which is connected to one of the valve members 52 in control valve 59. Control valve 50 is connected to cylinders 21 by hydraulic lines 53 and 54 and to cylinders 18 by hydraulic lines 55 and 56. Control valve 50 is also connected to cylinder 38 by hydraulic lines 57 and 58 and to cylinder45 by hydraulic lines 59 and 60 where upon operation of theproper operating lever 51, the corresponding control valve 52 will be actuated thereby supplying hydraulic fluid to actuate the piston and rams in desireddirection toeffect desired operation of the device.

vehicle on which the apparatus is mounted and further that by operation of ram 37 and cylinder 38, that closure member 30 can be actuated to eifect removal of the material from the bucket 29 or to position closure member 30 in desired position within bucket 29.

In Figs. 2 and 4 as shown in dotted lines, the bucket is in various lateral positions. It will be apparent that the range of such lateral movement will be controlled through the length of slot 48, their ends of which act as stops and also the length of cylinder 45 and ram 46.

It is pointed out that by the use of the device of this invention that the apparatus may be employed for trenching or loading and that a much wider range of dumping of the bucket is provided without the necessity of any movement of the vehicle itself, which serves to considerably speed up and facilitate the operation of the device.

It will be seen that the dipper stick may be pivoted laterally regardless of the angular relation of the dipper stick and push arms thereby providing in effect a universal movement thereof giving much greater range of loading without movement of either the vehicle on which the apparatus is mounted or a vehicle to be loaded.

Also the apparatus may be mounted on any type vehicle and on the front or rear thereof.

, From the foregoing, it will be seen that I have pro- 1. In aadevice of the character described, supporting the free ends of said arms and means for pivoting said connecting means relative to said arms, a bucket carrying dipper stick pivotally connected intermediate its ends to said supporting means for pivotal movement in a direction substantially parallel with the axis of said supporting arm means, hydraulically actuated means for pivoting said dipper stick in such parallel direction for digging, a second pivotal connection between said dipper stick and said supporting means whereby said dipper stick may be pivoted in a direction substantially normal to the axis of said supporting means, and hydraulically actuated means for pivoting said dipper stick in such normal direction for loading and means for limiting the extent of pivotal movement of said dipper stick in such normal direction, said means for limiting the extent of normal pivotal movement of said dipper stick comprising a curved slot on said connecting means and a pin on said dipper stick and extending into said slot.

2. A digger attachment adapted to be mounted on a vehicle, a supporting arm extending axially of the vehicle and pivoted thereto at one end, whereby the free end, remote from said vehicle, may be raised and lowered, support means pivoted to and extending vertically from said arm at its free end, means to rock said support about its pivot in the plane of the vehicle axis, a dipperstick mounted on said support means and pivoted thereto on an axis normal to the said support means, and means to selectively rotate said dipper-stick on said axis whereby said dipper-stick may be swung into substantially horizontal position normal to the axis of said vehicle.

3. The digger attachment of claim 2 in which said means to rotate said dipper-stick on said axis comprises a hydraulic cylinder andpiston means.

4. The digger attachment of claim 2 in which said .means to rotate said dipper-stick on said axis comprises a'hydraulic cylinder and piston means, a pin mounted on said dipper-stick eccentric to said axis, said pin passing through said support, said hydraulic means being secured at one end to said support and at the other to said pin.

5. The digger attachment of claim 2 in which said means to rotate said dipper-stick on said axis comprises a hydraulic cylinder and piston means, and means for limiting the extent of pivoted movement of said dipperstick about said axis, said means for limiting the extent of such pivotal movement comprising an arcuate slot in said support and a pin extending therethrough.

References Cited in the file of this patent UNITED STATES PATENTS Australia Oct. 10, 1951 

